:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --fg: #e8e8e8;
  --fg-muted: #888;
  --fg-dim: #555;
  --accent: #f0c040;
  --accent-dim: rgba(240, 192, 64, 0.15);
  --accent-glow: rgba(240, 192, 64, 0.08);
  --border: #222;
  --radius: 8px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-display);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== HERO ===== */
.hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 24px 60px;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-dim);
  display: inline-block;
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 32px;
  width: fit-content;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero h1 .accent {
  color: var(--accent);
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--fg-dim);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 4px;
  transition: border-color 0.2s, color 0.2s;
}

.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== CTA BUTTON ===== */
.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0a;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 15px 36px;
  border-radius: 6px;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.1s;
}

.cta-btn:hover { opacity: 0.88; }
.cta-btn:active { transform: scale(0.98); }

/* ===== PROBLEM ===== */
.problem {
  padding: 100px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: start;
}

.problem-stat {
  position: sticky;
  top: 100px;
}

.stat-number {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
}

.stat-label {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

.problem-text h2 {
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 20px;
}

.problem-text p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.features-header {
  margin-bottom: 60px;
}

.features-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.feature-block {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.3s;
}

.feature-block:hover {
  border-color: var(--accent);
}

.feature-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.feature-block h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.3;
}

.feature-block p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ===== NUMBERS ===== */
.numbers {
  padding: 100px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.numbers-header {
  max-width: 900px;
  margin: 0 auto 60px;
}

.numbers-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.numbers-header p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 550px;
  line-height: 1.6;
}

.numbers-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.number-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
}

.number-value {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 14px;
}

.number-unit {
  font-size: 0.5em;
  color: var(--fg-muted);
  font-weight: 500;
}

.number-desc {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 24px;
  text-align: center;
}

.closing-content {
  max-width: 650px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.2;
}

.closing p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-dim);
  letter-spacing: 0.05em;
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 60px 20px 50px;
  }
  
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .problem-stat {
    position: static;
  }
  
  .features-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .numbers-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .problem, .features, .numbers, .closing {
    padding: 60px 20px;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero-tags {
    gap: 8px;
  }
  
  .tag {
    font-size: 0.65rem;
    padding: 5px 10px;
  }
  
  .feature-block {
    padding: 24px;
  }
  
  .number-card {
    padding: 28px 20px;
  }
}